Find the third degree polynomial function that has an output of 40 when x=1, and has zeros −19 and −i?
1 answer:
Answer:
Step-by-step explanation:
Complex numbers:
The following relation is important for complex numbers:
Zeros of a function:
Given a polynomial f(x), this polynomial has roots such that it can be written as: , in which a is the leading coefficient.
Has zeros −19 and −i
If -i is a zero, its conjugate i is also a zero. So
Output of 40 when x=1
This means that when . We use this to find the leading coefficient a. So
The polynomial is:
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Answer:
<em>21=121-2=11</em>
Step-by-step explanation:
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Rewrite the right side of the equation
in the following way:
.
Then the equation is
and
.
So,
and
The equation has two solutions:
and
.
I’m confused on wha going
Answer:
x = 3, y = -6
Step-by-step explanation:
-6x - y = -12 (1)
4x + y = 6 (2)
Add (1) and (2)
-2x = -6
x = 3
4x + y = 6
12 + y = 6
y = -6
x = 3, y = -6